# Lesson 10

Solve Area Problems

### Lesson Purpose

The purpose of this lesson is for students to solve problems involving area.

### Lesson Narrative

In previous lessons, students found the area of rectangles with tiles, grids, partial grids, or linear measurements marked along the sides of the rectangle. Students also used rulers to find the area of rectangles.

The problems in this lesson are about a community garden. Consider launching the lesson with a read-aloud of City Green by DyAnne DiSalvo-Ryan to get students thinking about different aspects of a community garden. Students might draw squares within rectangles, draw tick marks on side lengths, count groups, or multiply to find area in this lesson. Any reasoning that makes sense to them is acceptable.

• Engagement
• MLR8

### Learning Goals

Teacher Facing

• Solve real-world and mathematical problems involving area.

### Student Facing

• Let’s solve area problems.

### Required Materials

Materials to Gather

Materials to Copy

• Centimeter Grid Paper - Standard

### Lesson Timeline

 Warm-up 10 min Activity 1 10 min Activity 2 25 min Lesson Synthesis 10 min Cool-down 5 min

### Teacher Reflection Questions

Which question did you ask today that best supported students’ understanding of area within a context? What did students say or do that showed the question was effective?

### Suggested Centers

• Capture Squares (1–3), Stage 6: Multiply with 1–5 (Addressing)
• Rectangle Rumble (3–5), Stage 2: Factors 1–5 (Addressing)
• Five in a Row: Addition and Subtraction (1–2), Stage 7: Add within 1,000 without Composing (Supporting)